CompletedNot Applicable

Dynamic Difficulty Adjustment in a P300 Speller Task for Attention Training

Ireland51 participantsStarted 2022-10-03

Plain-language summary

This study compares different adaptation approaches in a P300-based BCI neurofeedback training to improve short-term attention. Participants will spell several words on a computer by focusing on a letter on the screen while their brain activity is recorded (P300 speller). The difficulty of this task will be adapted to train their attention. Their cognitive abilities will be evaluated using a random dot kinematogram, where they are asked to indicate the direction a fraction of moving dots on the computer screen is going in, before and after the training to analyse any improvements. Questionnaires will be used to compare the perceived task load of the different adaptation approaches.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * 18 years and older * able to consent * normal or corrected-to-normal vision Exclusion Criteria: * history of neurological or cognitive illnesses * negative reaction to electroconductive gel used in the study (an allergy patch test will be carried out before the experiment starts) * illiteracy

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Change in response times in the random dot motion task

Timeframe: Measured immediately before and after the training block in the experimental session (~1 hour and 30 minutes total)

Change in accuracy in the random dot motion task

Timeframe: Measured immediately before and after the training block in the experimental session (~1 hour and 30 minutes total)

Change in total power of EEG signals

Timeframe: Measured over the course of the training block in the experimental session (~1 hour and 30 minutes total)

Change in alpha power of EEG signals

Timeframe: Measured over the course of the training block in the experimental session (~1 hour and 30 minutes total)

Length of training

Timeframe: Measured over the course of the training block in the experimental session (~1 hour and 30 minutes total)

Trial details

NCT IDNCT05576649

SponsorNational University of Ireland, Maynooth

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2023-03-13

View on ClinicalTrials.gov More Attention trials

Plain-language summary

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

What they're measuring

Change in response times in the random dot motion task

Timeframe: Measured immediately before and after the training block in the experimental session (~1 hour and 30 minutes total)

Change in accuracy in the random dot motion task

Timeframe: Measured immediately before and after the training block in the experimental session (~1 hour and 30 minutes total)

Change in total power of EEG signals

Timeframe: Measured over the course of the training block in the experimental session (~1 hour and 30 minutes total)

Change in alpha power of EEG signals

Timeframe: Measured over the course of the training block in the experimental session (~1 hour and 30 minutes total)

Length of training

Timeframe: Measured over the course of the training block in the experimental session (~1 hour and 30 minutes total)